Porogamy

Q.

What is mesogamy?

Q.

The pollen tube usually enters the embryo sac

1. By directly penetrating the egg.

2. Between one synergid and central cell.

3. Through one of the synergids.

4. By knocking off the antipodal cells.
   

Q. The entry of pollen tube into the ovule through micropyle is called

1. porogamy
2. All of the above
3. chalazogamy
4. mesogamy